4-Amino-3-bromo-6-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Bromo-4-cyano-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine
3-Bromo-4-cyano-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine
3-Bromo-2-cyano-6-(difluoromethyl)-4-(trifluoromethoxy)pyridine